Google (GOOG) manages to eke out a marginal marketshare expansion, taking 66.4% of the U.S....

Google (GOOG) manages to eke out a marginal marketshare expansion, taking 66.4% of the U.S. search market in February after nabbing 66.2% in January, according to ComScore. Microsoft's (MSFT) Bing inched up to 15.3% from 15.2%, while Yahoo's (YHOO) share fell once again, to 13.8% from 14.1%.